Process of subdividing crystalline calcium carbid.



J. M.,MOREHEAD, G. E. comz J. G.MARSHALL.

PROCESS OF SUBDIViBiNG CRYSTALLINE OALGIUM CAEBID.

APPLICATION TILED MAR. 30, 1905.

Patented Aug. 20, 1912.

@0111? M. MQREHEAD, w sme ma, ILLINOES, A amm xz am":

J 13353 *5 MARSHALL, 0T3 NIflGARA FALLS, INEIY 0191K, ASSIGNOHS TO 'UNIUYT EARBJMD: C9133;

o'f Remus amut.

D-Gi In HEAD and G. MARSHALL residing at 1} ca State of 15110 {mi (3 v count 0f '1 L Wing is a he sub Y nniicrnz SiZQ use in acstylen The product 0:? the CIHShCES is miiture 0, fragments of difi exn'i; sizes and 0f dust The dust which constitutes a considerabk 30 percentage of the whole precinct, must be screened out, and is a, material of little mks, being resznelted in accordance wiih the pracess chimed U. S. Patent 727,095, granted May 5, 1903, t0 Qox.

35 The present inveniion is an Lnymvebi precess subdividing crysafiine JjQium in L,

carbid into fragments 6% d i anti I army pmg'im 4 def Trained size, with th productien 01* 33 51:: qian. I or no dust, in which advantage is taken "We claimzthe fact that (3.11 carbid ingots, when freed Y he h' np some cong'n of ggregu '15 plums-5s, the

bin. at spaceci in'te ously feeding the carbid, and subiividin the same into fragments of predetermme 7 same into fragments of: predetermine size by applying a cleavage force thereto at apposite sides thereof and at points in the deavage planes of the crystals;

3. The process of subdwldlng crystsllifie' calcium carbid, which consists in continuously feeding the carbid, and splittin the by applying ax continuonsly-increasing cleavmg pressure at opposite sides of'the carbid so split the same at paints along the cleavage planes of the crystals.

size I JAMES e. MARSHALL.

: Witnesses for John MJMoreheadz E. F. PR-ICE, G. W. MEAD.

Witnesses for G. Marshall:

y W. H. L. SNEATH, LE. BILLINGS.

George E. Cox and James 

